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28 September 2015 Fabrication and sensing characteristics of helical long-period fiber gratings written in the rotated fiber by CO2 laser
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96346Y (2015) https://doi.org/10.1117/12.2194627
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
A helical long-period grating (HLPG) was fabricated by twisting a conventional single-mode fiber when CO2 laser beam was sweeping along the fiber axis. A grating with a contrast of 20 dB can be written in the fiber with a length of 1 cm. The spectral and sensing characteristics were investigated experimentally. The maximum sensitivity to surrounding refractive index and temperature measurement was measured to be 995 nm/RIU and 53 pm/°C, respectively.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Liang Zhang, Yunqi Liu, Hongliang Song, and Tingyun Wang "Fabrication and sensing characteristics of helical long-period fiber gratings written in the rotated fiber by CO2 laser", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346Y (28 September 2015); https://doi.org/10.1117/12.2194627
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